Finding the Fourth Proportional to 1,562.38, 2,155.57 and 933.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.38 : 2,155.57 = 933.01 : x
2. Step 2: Convert to fraction form
   1,562.38/2,155.57 = 933.01/x
3. Step 3: Cross multiply
   1,562.38x = 2,155.57 × 933.01
4. Step 4: Simplify right side
   1,562.38x = 2,011,168.37
5. Step 5: Solve for x
   x = 2,011,168.37/1,562.38
6. Step 6: Final answer
   x = 1,287.25